<!doctype html>
<html>
<head>
    <meta charset="utf-8">
    <title>Geo3D - ECHARTS-GL</title>
    <meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=no">
    <meta name="apple-mobile-web-app-capable" content="yes"> <!-- Fullscreen Landscape on iOS -->
    <link rel="stylesheet" href="./common.css">
</head>
<body>
<div id="main"></div>
<script src="../node_modules/echarts/dist/echarts.js"></script>
<script src="../node_modules/echarts/map/js/world.js"></script>
<script src="../dist/echarts-gl.js"></script>
<script src="lib/jquery.min.js"></script>
<script src="js/commonUI.js"></script>
<script>
    var chart = echarts.init(document.getElementById('main'));

    $.getJSON('data/world-population.json', function (populationData) {

        var max = -Infinity;
        var min = Infinity;
        populationData.forEach(function (item) {
            max = Math.max(Math.log(item.value), max);
            min = Math.min(Math.log(item.value), min);
        });

        var regions = populationData.map(function (item) {
            return {
                name: item.name,
                height: (Math.log(item.value) - min) / (max - min) * 3
            };
        })

        chart.setOption({
            backgroundColor: '#cdcfd5',
            geo3D: {
                map: 'world',
                shading: 'lambert',
                groundPlane: {
                    show: true
                },
                viewControl: {
                    distance: 50
                },

                itemStyle: {
                    color: 'rgba(255, 255, 255, 0.8)'
                    // borderColor: '#222',
                    // borderWidth: 1
                },

                regionHeight: 0.5,

                regions: regions
            },
            series: []
        });

    });
    window.addEventListener('resize', function () {
        chart.resize();
    });
</script>
</body>
</html>
